Including two of the six Heisman finalists, Alabama’s AJ McCarron and Texas A&M’s Johnny Manziel, the SEC quarterback landscape will look dramatically different in 2014. About half of the league will be breaking in new quarterbacks, and some of them might not even be on campus yet.

It isn’t just the SEC. The depth of the outgoing QB class means several other high-end programs, including Clemson and Texas, could have first-time starters next season.

UCLA could lose Brett Hundley, if he decides to go pro, but we’ll exclude him for now. Our draft analysts have told me he would be better off returning to school, like Oregon’s Marcus Mariota. But the top of the QB list is weak enough that if the 6-foot-4, 225-pound Hundley has designs on going early, it could be the right time.

Here are the top 10 QB transitions and the succession plans for those teams.

Manziel has not made an announcement about next season, but I’ve been given zero indication that he is even considering a return to school. So how do you go about replacing (this year’s bowl notwithstanding) about 10,000 yards and 88 touchdowns in two seasons? In short, you don’t. Texas A&M’s confidence heading into next year is based on how it has and continues to recruit all positions -- including quarterback.